package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.time.LocalDateTime;

/**
 * @author xindezhentu
 * @create 2023-03-29 19:50
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {
    @Autowired
    private EmployeeService employeeService;
//    员工登录
     @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

         //1、将页面提交的密码password进行md5加密处理
         String password=employee.getPassword();
         password = DigestUtils.md5DigestAsHex(password.getBytes());
         //2、根据页面提交的用户名username查询数据库
         LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
         queryWrapper.eq(Employee::getUsername,employee.getUsername());
         Employee emp = employeeService.getOne(queryWrapper);
         //3、如果没有查询到则返回登录失败结果
         if(emp==null){
             return  R.error("登录失败");
         }
         //4、密码比对，如果不一致则返回登录失败结果
         if(!emp.getPassword().equals(password)){
             return R.error("登录失败");
         }
         //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
         if(emp.getStatus()==0){
             return R.error("账号已禁用");
         }
         //6、登录成功，将员工id存入Session并返回登录成功结果
         request.getSession().setAttribute("employee",emp.getId());
         return R.success(emp);
     }
     @PostMapping("/logout")
        public R<String> logout(HttpServletRequest request){

//         清除Session中保持的员工id
         request.getSession().removeAttribute("employee");
         return R.success("退出成功");
        }
        @PostMapping
        public R<String> save(HttpServletRequest request, @RequestBody Employee employee){
         log.info("新增员工，员工信息：{}",employee.toString());

//         加密初始密码
         employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//         employee.setCreateTime(LocalDateTime.now());
//         employee.setUpdateTime(LocalDateTime.now());
//            Long empId = (long)request.getSession().getAttribute("employee");
//            employee.setCreateUser(empId);
//            employee.setUpdateUser(empId);
         employeeService.save(employee);
         return  R.success("新增员工成功");


        }
        @GetMapping("/page")
        public R<Page> page(int page,int pageSize,String name){

         log.info("page={},pageSize={},name={}",page,pageSize,name);

//        构造分页构造器
            Page pageInfo = new Page(page,pageSize);

//         构造条件构造器
         LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
//         添加过滤条件
            queryWrapper.like(StringUtils.isNotEmpty(name),Employee::getName,name);
//            排序条件
            queryWrapper.orderByDesc(Employee::getUpdateTime);
            employeeService.page(pageInfo,queryWrapper);
            return R.success(pageInfo);
        }
//       根据id 修改员工信息
    @PutMapping
        public R<String> update(HttpServletRequest request,@RequestBody Employee employee){

//
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//         employee.setUpdateUser(empId);
         employeeService.updateById(employee);
         return R.success("员工信息修改成功");
        }
        @GetMapping("/{id}")
        public R<Employee> getById(@PathVariable Long id){

            Employee employee = employeeService.getById(id);
            if(employee!=null){
                return R.success(employee);
            }
            return R.error("没有查到员工信息");

        }


}
